Three two-channel SSL LED drivers by Atmel Corporation provide accurate color control for two-color LED light engines and, according to the company, deliver the most efficient power management with ...

A silicon light-emitting diode (LED) that can quickly switch between producing red and blue light could ultimately lead to smaller pixels for high-resolution displays. LEDs can normally only emit ...

How many different conditions do you reckon may be signalled with just one LED? Two, maybe three? Using this simple circuit, a lot more! Admittedly, a two-colour LED is used here. Such a device ...

Color digital laser and light-emitting diode printers are very similar. Both can print your business documents relatively quickly by melting toner to the paper, and both use a photosensitive drum. The ...